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Monday, 21 October 2013

South Coast trip, part 3

Let's start with Camel Rock, about five minutes' drive north of Bermagui. The rock gets its name from the distinctive shape, as seen by Bass and Flinders in an early mapping trip along the coast.

 This is a great place to sample Ordovician turbidites, sedimentary rocks that formed on a deep ocean floor when unstable sediments avalanched down the continental slope, sorting as they went and slumping and bending as more weight was dumped on top of them. This shot is a little hazy, as it was taken during the October 2013 NSW bushfires.

Here is a clearer, more close-up shop, where you can see that some of the jagged bits are actually birds:

 This is the place for folds and curly stuff.

The scale here, and in all of the photos where it appears, is a 50-cent coin which is 32 mm across. Now here is some faulting, in two views.

We got more of the same at Mystery Bay, which got its name when a geologist and his party disappeared:

From somewhere else, I gathered that the boat was not only holed, but it was stove out, rather than stove in, indicating foul play, as did the presence of personal property in the boat. There is more detail here. The source is the Illustrated Sydney News of November 20, 1880. If you turn over to page 12, you will find this picture:

 But we were here for the rocks, so here are some of them: enjoy!

 The second shot below has a 32mm 50-cent coin for scale.

Next time: Bingie Bingie point with dykes and some interesting Cuttagee sedimentaries.

Links to the other four parts:

Part 1
Part 2

Part 4
Part 5

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